#553696
Closest named color: Rebecca Purple (#663399). oklch(42.3% 0.15 293.9), rgb(85, 54, 150).
Aa
White text reads best on this color (8.91:1).
About this color
#553696 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.150 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.032 away. White text reads best on it, at 8.91:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.150) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #553696 |
| RGB | rgb(85, 54, 150) |
| HSL | hsl(259, 47%, 40%) |
| OKLCH | oklch(42.3% 0.15 293.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #553696 | 8.91:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #553696 | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #553696 text on white | 8.91:1 | AAA | Lc 90.0 | Preferred for body text |
| #553696 text on black | 2.35:1 | Fails | Lc -12.3 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#DAD4F7
oklch(88.6% 0.048 293.3)
-
Step 300
300
#C3B6F4
oklch(80.9% 0.087 294)
-
Step 400
400
#A68EEF
oklch(70.8% 0.14 293.9)
-
Step 500
500
#926EE9
oklch(63.1% 0.179 294.2)
-
Step 600
600
#7D52D8
oklch(55.6% 0.196 293.8)
-
Step 700
700
#6A42BB
oklch(49.2% 0.181 293.9)
-
Step 800
800 (this color)
#553696
oklch(42.3% 0.15 293.9)
-
Step 900
900
#463178
oklch(37.6% 0.116 293.7)
-
Step 950
950
#291D46
oklch(26.9% 0.074 294.4)
#553696 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #004B99 | 0.096 |
| Deuteranopia (no green cones) | #004894 | 0.096 |
| Tritanopia (no blue cones) | #434C61 | 0.118 |
| Achromatopsia (no color) | #4A4A4A | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553696
#553696
oklch(42.3% 0.15 293.9)
- #4E5300
#4E5300
oklch(42.3% 0.095 113.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #553696, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.032
- Dark Slate Blue #483D8B ΔE 0.033
- Blueberry #464196 ΔE 0.034
- Chrysanthemum #560BAD ΔE 0.068
- Twilight #4E518B ΔE 0.073
- Imperial Purple #480CA8 ΔE 0.074
- Blue With A Hint Of Purple #533CC6 ΔE 0.078
- Cobalt #1E488F ΔE 0.084
Use #553696 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.